Ok so I've been trying to unroot my phone for the past 2 days and I keep getting a FAIL in Odin. I have tried new cables, tried plugging the usb in the back of the computer, tried different computers, different firmware, odin, and drivers and I keep getting a fail! On my phone the error says SV Rev. Check fail: fused: 4, Binary: 1 and on Odin it says Get Pit for mapping... Firmware update start... aboot.mbn... NAND write start.. Complete(Write) operation failed.. All threads completed (succeed 0/failed 1) Someone please help me! Something so simple is really frustrating me. I have a Galaxy S4 SGH-I337 btw. Let me know. Thanks!